Often, there are symptom patterns and signs characteristic of occupational asthma when there is no other explanation for these symptoms.
| Likelihood of diagnosis increases if symptoms include two or more of these are mentioned: | ||||
|---|---|---|---|---|
 |
 |
 |
 |
 |
| Wheezing or wheezy sounds in your chest. | Chest tightness. | Cough. | Shortness of breath. | Low forced expiratory flow in 1 second (FEV1) or reduced peak flow rate (British guidelines on management of asthma). |
